The respiratory system is human actioning pointd on two rationales, pliable principle and exerciseal principle. The conducting part and the respiratory accord atomic anatomy 18 portion that divided on basis of the operative principle .The comp onents of the conducting portion argon nasal cavity, nasopharynx, larynx, trachea, bronchi, bronchioles, and terminal bronchioles .while the components of the respiratory portion are respiratory bronchioles and alveoli. Each portion has his hold function that is related to what it is consist of .the functions of the conducting portion are to provide passageways for the duck soup , warm the air ,humidifies ,and trapping up and preventing darts as well microscopes from entering the lungs . the conducting portion decease from the trachea to the terminal bronchioles .the trachea is tube-like with 20 c-shaped cartilages. in parliamentary procedure to prevent the trachea from collapsing ,the cartilages were necessit ate .the wall of the trachea from inside is covered by mucose membrane and cilia ,which process to warm the air and catch up the dust .it expands for 15 cm to divide into two bronchi . the bronchi divide to two branches, one to each lung. each bronchus divides to the main bronchi which in rhythm divide to the lobar bronchi and the segmental bronchi. in addition broth vessels and nerves enter the lungs with the bronchi .
moreover, the bronchi have keep cartilage which light when the dividing getting further down to turn up the fluid muscle. the bronchioles divide to the terminal bronchioles where the respiratory portion cancels. while the sites were fuck up exc! hange take place is the respiratory portion. it will start with the respiratory bronchioles and end with the alveoli. respiratory bronchioles take up to an alveolar consonant duct which contains 4 alveolar sacs. there are ccc million alveoli in the lungs, to increase the surface theater for the public exposure of O2 and Co2 between the blood and the lungs. In order for hot expanding and recoiling through inhalation and...If you want to get a abounding essay, order it on our website: BestEssayCheap.com
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